Sunnis believe parts of the Holy Quran are Abrogated

While claiming on the one hand that the Holy Quran is perfect, immutable and eternal the Sunnis also believe that parts of it have been cancelled! The only group which believes that the Holy Quran is perfect and complete are the Lahori Ahmadis. Here Dr Zahid Aziz comments on an article in the Middle Eastern Review which deals with the theory of Abrogation.